Cylinder-lock



W. E. DEIBERT.

CYLINDER yocK. APPLICATION FILED NOV. 17, 1919 1,343,438. Patented J1 1 ne 15, 19200 m f B C ,1) i 10 INVENTOR 5 Attorneys der F, secured. to the 7 operation of the bolt from UNITED sr rEis W WERE.

WILLIAM in. nuns-ear, or READING, PENNSYLVANIA.

cYLINnnn-Loo To all whom it may concern;

Be it known that L'WILLIAM E. DNIBERT, a'citizen of the -United States, residing at Reading, in the countyof Berks andState of Pennsylvania, have inventedcertain new and useful Improvements inCyhnder-Locks, of which the following is a specificat on,

My invention relates particularly to cylinder door locks in which a single key barrel is employed in connection with separate means for operating the same bolt from the other side of thedoor. a

A turn knoband spindle have been commonly employed heretofore in cylinder locks, for operating the bolt from the lnner side of the door, -My inventionf provldes for simplifying and improving the construction, assembling, application, and operation of such locks as ing, andthe novel features thereof being specifically pointed=, out in claims.

Figure 1 is a vertical sectional view indicating an applied lock embodylng my 1nvention, the bolt being omitted.

Figs. 2 and 3 are enlarged perspective detail views respectively of the two bolt-arms which are differently carried by the key barrel.

B, indicates an ordinary mort se lock casing, setinto the door C, an opening D,be1ng shown therein for the p which is operated in well known manner by a key barrel E, mounted in a tumbler cylincasing. A turn knob G, having a spindle J, is shown extending oppositely into the casing to provide for operating the bolt independently of the key barrel. I

My invention consists in provldlng 1mproved means for effecting the operation of the bolt by the knob spindle J the ma n object thereof being to avoid the use of a separate bolt-throwing device for such purpose, and to insure that the independent the inner side of the door shall in no case interfere with its operation by the key barrel, or vice versa. The essential feature of the invention consists in providing the key barrel with two bolt-throwing arms, one only of which is operative with said barrel to throw the bolt,

and the other of which is independently 7 operable by said knob spindlefor the same purpose; the second arm being also adapted lSpeci fication of Letterslatent. Patented Application filed November a, 1919." Serial No; 333,741.

hereinafter fully described in connection with the accompanying draw-.

the subjoined passage of the bolt to be automatically moved by the key barrel as may be required'to release the bolt for operation by the :latter. 7 V 3 The key operated bolt-throwing arm 10, as indicated, is afseparately formed part rigidly secured to the-inner end of'the'key barre'lE, by means of screws 11, 11, and proen'gage thebolt as usual. The knob-oper- J ne 15, 1:920. I

-jecting radially therefromto operatively I ated bo1t'throwing a'rm 12, is a similar separately formed part which is pivotally connected to thebarrel by a headed axially projecting pin'13, so asto swing past the fixed arm 1( in close proximity'to the latter.

" T-his pivoted arm 12, of the barrel is pro vided as shown, with a hollow hub 14,

adapted to be-engaged by theinner endof the spindle J, sons to vcause said arm to rotate with the latter for operating the bolt independently of the key barrel; the arm 12, 7

though secured to the barrel,thus becoming an operative part of the knob spindle in the assembled structure. Y

To provide forinsu'ring satisfactory operation of the bolt it is important to prevent possible interference of the two boltthrowing means provided. To this end I provide for automatically carryingthe pivoted bolt-throwing arm 12, of the barrel with the fixed arm 10, thereof, sufficiently to insure the non-interfering positioning of the latter preliminaryto the desired boltthrowing action, this being accomplished, by providing frictionalengagement between the arms when they are in corresponding radial position, by means of a spring pressed' ;pin 15, having a tapered end (adapted to enter a recess 16, in the loose arm as indicated. i V

My construction provides foruse ofthe lock for either right or left swinging doors without requiring anyreversing of the lock mechanism or employment of additional knob-throwing attachments. The key barrel E, carrying both the key actuated throw arm 10, and knob-operated arm 12, may be inserted from-either side of the door without. change in the lock mechanism arrangement, which not only simplifies its application to a door but prevents unsatisfactory lock operation due to heretofore required readjustment ofthe lock mechanism by inexpert operators. The parts maynow be made 1 up in unchanged units to be readily assembled in the door, placing the key fcylinder on either side as desired. "The frictional engagement of the arms 10 and 12, prevents the unintentional locking of the door by a half turned position of the knob-spindle which has heretofore been the'case in separately controlled bolt-opening arms, my improved construction providing for engaging the half thrown arm 12, by the turning of the arm 10, and thereafter moving them tof axially alined independently operative spindle arranged to enter and rotatively engage said recessed arm. 7 I

a 2. In a cylinder lock, a key barrel having one bolt throwing arm fixedly rotative therewith and another pivotally carried -thereby,.and means for independently op 7 erating said pivotally carried arm; said arm being frictionally engaged when in determined radial relation.

3. In a cylinder look, a key barrel having one bolt-throwing arm fixedly rotative therewith and another independently rotative upon the barrel axis, said arms being frictionally engaged when in determined radial relation, and means for separately operating said independently rotative arm.

'4. In a cylinder look, a key barrel having one bolt-throwing arm fixedlyrotative therewith and another independently rotative upon the barrel axis, and an axially alined knob spindle rotatively said independently rotativ'earm V 5. In a cylinder look, a key barrel having one bolt-throwing arm fixedly rotative engaging therewith and another independently rota} tive upon the barrel axis, said armsbeing frictionally' engaged when in determined. radial relation, and an axially alined thumbknob spindlerotatively engaging said indep'endentlyrotative arm. I

In testimony whereof I aflix my signature.

WILLIAM E. DEIB R 

